Figure 7. Self-charging mechanism of the
ZnO@Mo-Fe-MnO2 NA based SCSPC. (a) The original
state of the device without external forces. (b) The potential
difference created by the external force drove the mobility of the
electrolyte ions. (c) The potential difference resulting from
the residual stress caused the electrolyte ions to migrate again.(d) A new electrochemical equilibrium was reached. (e)The positive and negative potentials disappeared, and the counter
migration of electrolyte ions occurred and returned to the original
states.